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health advisory Hospital Doctor Yu 2007-11-8 19:08:15

Answers:

Travel sickness, which is due to confusion between perceived movement and actual movement. Our sense of equilibrium lies in the ear and works together with eyesight. When these two don't "agree" to what extent the body is actually moving the symptom is presented as nausea even though the stomach itself has nothing to do with the situation.

Motion sickness is a condition in which the endolymph (the fluid found in the semicircular canals of the inner ears) becomes 'stirred up', causing confusion between the difference between apparent perceived movement (none or very little), and actual movement. Depending on the cause, it is also referred to as seasickness, carsickness, airsickness, or spacesickness.

Motion sickness on the sea can result from being in the berth of a rolling boat without being able to see the horizon. Sudden jerky movements tend to be worse for provoking motion sickness than slower smooth ones, because they disrupt the fluid balance more. A 'corkscrewing' boat will upset more people than one that is gliding smoothly across the oncoming waves, and cars driving rapidly around winding roads or up and down a series of hills will upset more people than cars that are moving over smooth, straight roads. Looking down into one's lap to consult a map or attempting to read a book while a passenger in a car may also cause motion sickness.

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because of fld in your vestibular canal

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stiggy is sooo right on this one, it is the fluid in the inner ear, that is what keeps you fron falling on your a** alot

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Their equilibrium is disturbed.

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Stiggy got it!